CN107421811A - A kind of pressure break proppant pressure experiment machine and method - Google Patents

A kind of pressure break proppant pressure experiment machine and method Download PDF

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Publication number
CN107421811A
CN107421811A CN201710615217.7A CN201710615217A CN107421811A CN 107421811 A CN107421811 A CN 107421811A CN 201710615217 A CN201710615217 A CN 201710615217A CN 107421811 A CN107421811 A CN 107421811A
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China
Prior art keywords
proppant
crushing chamber
pressure
pressure break
put down
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CN201710615217.7A
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CN107421811B (en
Inventor
吕小明
吕海燕
李建山
山树民
李宪文
古正富
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China Petroleum and Natural Gas Co Ltd
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China Petroleum and Natural Gas Co Ltd
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/08Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0001Type of application of the stress
    • G01N2203/0003Steady
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0014Type of force applied
    • G01N2203/0016Tensile or compressive
    • G01N2203/0019Compressive
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0058Kind of property studied
    • G01N2203/0076Hardness, compressibility or resistance to crushing
    • G01N2203/0087Resistance to crushing
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/02Details not specific for a particular testing method
    • G01N2203/026Specifications of the specimen
    • G01N2203/0284Bulk material, e.g. powders

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  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
  • Crushing And Grinding (AREA)

Abstract

The invention provides a kind of pressure break proppant pressure experiment machine and method, including crushing chamber, pressure equipment and the piston located at crushing chamber, pressure equipment acts on piston, also device is put down including sample, it is supporting with crushing chamber that the sample puts down device, dismountable cover plate is provided with the top of the crushing chamber, the sample is put down and passes through cover plate at the top of device.This pressure break provided by the invention proppant pressure experiment machine, proppant is put down by putting down device, proppant is uniformly layered on crushing chamber inner chamber bottom surface, experimental precision is improved, reduces experiment risk source, operating efficiency is effectively improved, is advantageous to Laboratory Standard management.

Description

A kind of pressure break proppant pressure experiment machine and method
Technical field
The invention belongs to oil-gas field fracturing acidifying technical field of experiment equipment, and in particular to a kind of pressure break proppant pressure Power experimental machine and method.
Background technology
Fracturing fluid and additive, which are mixed, is pumped into stratum, produces crack, and proppant is carried to seam, is propped up after the row of returning Support agent makes fracture open.The effect of proppant is to make fracture open after crack is produced, therefore its intensity is most important, proppant It must be enough to bear clossing pressure.Supporting crack is obtained under the effect of stratum effective stress with keeping long-term higher water conservancy diversion energy Power is the key of steady output of oilwell.
The percentage of damage of proppant has an impact to supporting crack flow conductivity, so should reach its regulation in the proppant used It is required that.Because the higher proppant long-term flow conductivity of percentage of damage declines by a big margin, thus at the scene pressure break when preferentially use The relatively low proppant of percentage of damage can obtain higher fracture condudtiviy.Whether the percentage of damage of proppant is to examine proppant qualified Major criterion.
Presently used standard SY/T5108-2014《Hydraulic fracturing and gravel packing operations proppant performance test methods》 In, it is desirable to sample is poured into crushing chamber, is then placed in the piston of crushing chamber, rotates 180 degree(It is not recommended that rotation 180 degree, it is proposed that shake Dynamic crushing chamber so that sample is uniformly layered on bottom), the crushing chamber with sample is placed on press table.Diameter 76.2mm Crushing chamber quality about 2kg, the method that bottom is uniformly layered on by shaking crushing chamber sample is less susceptible to realize:1、 Crushing chamber quality is too big, and the risk of hand-held crushing chamber vibrations is bigger, pounds on the ground or easily goes out security incident on pin.2nd, hand Crushing chamber vibrations sample is held, it is big that sample is uniformly distributed otherness, qualitative can only probably be uniformly distributed, and can not quantify determination proppant Lay uniform degree.
The content of the invention
The purpose of the present invention is to overcome the above-mentioned problems in the prior art, improves experimental precision, reduces experiment risk Source, effectively improve operating efficiency.
To achieve these goals, technical scheme provided by the invention is as follows:
A kind of pressure break proppant pressure experiment machine, including crushing chamber, pressure equipment and the piston located at crushing chamber, press equipment Act on piston, in addition to sample puts down device, it is supporting with crushing chamber that the sample puts down device, is provided with the top of the crushing chamber removable Cover plate is unloaded, the sample is put down and passes through cover plate at the top of device.
The sample, which puts down device, to be included putting down bar, sample cover plate and rotary handle, the lid put down bar and pass through crushing chamber Plate, it is described to put down the external screw thread for being equipped with the middle part of bar and being threadedly coupled with cover plate, the threaded upper ends connection rotation for putting down bar Handle, lower end connection sample cover plate, the sample cover plate shape size are identical with crushing chamber lumenal cross-section;
The lower end of the rotary handle is fixedly connected with thickness pin, and the thickness pin, which sequentially passes through, puts down bar and sample cover plate posterior end Connect it is horizontally disposed put down shrouding, the thickness pin can put down the motion of bar inner circumferential with being rotated in for rotary handle, described to sweep The length of flat shrouding is equal to crushing chamber inner chamber internal diameter.
Both are fixedly connected after the upper end of the thickness pin passes through rotary handle, and the upper end connection of thickness pin is horizontally disposed Rotation dial plate, it is described rotation dial plate rotary indicator be connected with thickness pin.
The piston top end face, which is provided with, grabs annular groove and grabs ring, described to grab ring with piston hinge and coordinate with grabbing annular groove.
Present invention also offers a kind of pressure break proppant pressure experiment method, pressure break proppant pressure experiment is used Machine, the pressure break of experimental amount is placed in crushing chamber inner chamber with proppant, according to height of the pressure break proppant in crushing chamber inner chamber, The distance of device lower end and crushing chamber intracavity bottom is put down in adjustment, is loaded after mixing up and is put down device pressure break is put down with proppant, Lay pressure break proppant uniform, piston is put into crushing chamber inner chamber afterwards, equipment presses to piston by pressing, test pressure Split the percentage of damage at a particular pressure with proppant.
A kind of pressure break proppant pressure experiment method, specifically includes following steps:
Step 1)Pressure break proppant is put into, according to the apparent density of pressure break proppant, Mass Calculation pressure break proppant volume, Draw pressure break proppant in crushing chamber inner chamber by 100%-105% and crushing chamber the inner chamber bottom surface product of pressure break proppant volume Highly, the screw connection point of bar and cover plate is put down according to height adjustment, sample cover plate is located above pressure break proppant, Rotary handle rotates afterwards, drives thickness pointer to be moved upwardly or downwardly, make to put down shrouding apart from crushing chamber intracavity bottom away from From equal to height of the pressure break proppant in crushing chamber inner chamber;
Step 2)Crushing chamber inner chamber will be put into the device of putting down that cover plate connects, rotary handle is according to clockwise and counterclockwise Interval rotates a circle, and drive puts down shrouding and pressure break is repeatedly put down with proppant, lays proppant uniform, takes out afterwards Put down device and cover plate;
Step 3)Piston alignment crushing chamber inner chamber is put into, by pressing, equipment presses to piston, and mini-frac proppant exists Percentage of damage under specified pressure.
The beneficial effects of the invention are as follows:
This pressure break provided by the invention proppant pressure experiment machine, is put down to proppant by putting down device, makes support Agent is uniformly layered on crushing chamber inner chamber bottom surface, improves experimental precision, reduces experiment risk source, effectively improves operating efficiency, have Beneficial to Laboratory Standard management.
It is described in further details below in conjunction with accompanying drawing.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention;
Fig. 2 is piston structure schematic diagram.
In figure:1st, rotary indicator;2nd, rotary handle;3rd, cover plate;4th, crushing chamber inner chamber;5th, crushing chamber;6th, bar is put down;7th, sweep Flat shrouding;8th, sample cover plate;9th, thickness pin;10th, annular groove is grabbed;11st, ring is grabbed.
Embodiment
Embodiment 1:
Present embodiments provide a kind of pressure break proppant pressure experiment machine, including crushing chamber 5, pressure equipment and located at crushing chamber 5 piston, pressure equipment acts on piston, in addition to sample puts down device, and the sample puts down device and crushing chamber 5 is supporting, described The top of crushing chamber 5 is provided with dismountable cover plate 3, and the sample is put down and passes through cover plate 3 at the top of device.
This pressure break proppant pressure experiment machine that the present embodiment provides, is put down by putting down device to proppant, Proppant is uniformly layered on the bottom surface of crushing chamber inner chamber 4, improve experimental precision, reduce experiment risk source, effectively improve work Efficiency, be advantageous to Laboratory Standard management.
Embodiment 2:
On the basis of embodiment 1, a kind of pressure break proppant pressure experiment machine is present embodiments provided, the sample puts down device Including putting down bar 6, sample cover plate 8 and rotary handle 2, the cover plate 3 put down bar 6 and pass through crushing chamber 5, the bar 6 of putting down Middle part is equipped with the external screw thread being threadedly coupled with cover plate 3, the threaded upper ends connection rotary handle 2 for putting down bar 6, lower end connection Sample cover plate 8, the shape size of sample cover plate 8 are identical with the cross section of crushing chamber inner chamber 4;
The lower end of the rotary handle 2 is fixedly connected with thickness pin 9, and the thickness pin 9, which sequentially passes through, puts down bar 6 and sample cover plate 8 Posterior end connection is horizontally disposed to put down shrouding 7, and the thickness pin 9 can put down the inner circumferential of bar 6 fortune with being rotated in for rotary handle 2 Dynamic, the length for putting down shrouding 7 is equal to the internal diameter of crushing chamber inner chamber 4.
Operation principle:Device is put down before crushing chamber inner chamber 4 is put into, it is necessary to adjust sample cover plate 8 and put down shrouding 7 apart from broken The distance of the broken bottom surface of indoor chamber 4, the distance is by proppant apparent density, Mass Calculation proppant volume, due to proppant particles Between gap be present, it is therefore certain in the diameter of crushing chamber 5, in the case that floor space is definite value, according to the 100%-105% of volume Divided by floor space, height of the proppant in crushing chamber 5 can be calculated;Specific adjustment process is will to put down bar 6 and cover plate first 3 link position is fixed, and sample cover plate 8 is located above proppant, rotary handle 2 clockwise or counterclockwise, makes afterwards Thickness pointer is moved upwardly or downwardly equal in the height of crushing chamber 5 with proppant apart from the position of proppant to shrouding 7 is put down; After mixing up, it is put into and puts down device, rotating drive by rotary handle 2 puts down the circumferential movement of shrouding 7, proppant is put down, It is even to be laid in the bottom surface of crushing chamber inner chamber 4.
Embodiment 3:
On the basis of embodiment 2, a kind of pressure break as shown in Figure 1 proppant pressure experiment machine, institute are present embodiments provided State thickness pin 9 upper end pass through rotary handle 2 after both be fixedly connected, and the upper end of thickness pin 9 connects horizontally disposed rotation Dial plate, the rotary indicator 1 of the rotation dial plate are connected with thickness pin 9.
Can be by setting rotary indicator 1 not have rotation to turn around, thickness pointer will move up or down 1mm, so can root It can be adjusted according to the proppant height directly number of turns corresponding to rotation(Wherein, putting down the initial conditions of device is, put down shrouding 7 with The bottom surface of crushing chamber 5 contacts), adjustment time is greatlyd save, it is more efficient quick.
In the present embodiment, the piston top end face, which is provided with, grabs annular groove 10 and grabs ring 11, described to grab ring 11 and piston hinge And coordinate with grabbing annular groove 10.As shown in Figure 2.Ring 11 is grabbed conveniently piston is put into or extracted.Test sample scope is 1- 100mm。
Embodiment 4:
On the basis of previous embodiment, a kind of pressure break proppant pressure experiment method is present embodiments provided, uses pressure break With proppant pressure experiment machine, the pressure break of experimental amount is placed in crushing chamber inner chamber 4 with proppant, existed according to pressure break proppant The distance of device lower end and the bottom of crushing chamber inner chamber 4 is put down in the height of crushing chamber inner chamber 4, adjustment, is loaded after mixing up and is put down device to pressure Split and put down with proppant, lay pressure break proppant uniform, piston is put into crushing chamber inner chamber 4 afterwards, passes through pressure Equipment presses to piston, percentage of damage of the mini-frac with proppant at a particular pressure.
Detailed process is as follows:
Step 1)Pressure break proppant is put into, according to the apparent density of pressure break proppant, Mass Calculation pressure break proppant volume, Draw pressure break proppant in crushing chamber inner chamber 4 with the 100%-105% and the floor space of crushing chamber inner chamber 4 of proppant volume by pressure break Height, the screw connection point of bar 6 and cover plate 3 is put down according to height adjustment, sample cover plate 8 is located at pressure break proppant Top, afterwards rotary handle 2 rotate, drive thickness pointer be moved upwardly or downwardly, make to put down shrouding 7 apart from crushing chamber inner chamber 4 The distance of bottom is equal to height of the pressure break proppant in crushing chamber inner chamber 4;
Step 2)Crushing chamber inner chamber 4 will be put into the device of putting down that cover plate 3 connects, rotary handle 2 is according to clockwise and anticlockwise Direction interval rotates a circle, and drive puts down shrouding 7 and pressure break is repeatedly put down with proppant, lays proppant uniform, it Take out afterwards and put down device and cover plate 3;
Step 3)Piston alignment crushing chamber inner chamber 4 is put into, by pressing, equipment presses to piston, and mini-frac proppant exists Percentage of damage under specified pressure.
Part, the well-known components of structure and the method category industry and common structure that above example does not describe in detail or Conventional means, do not describe one by one here.
It is exemplified as above be only to the present invention for example, do not form the limitation to protection scope of the present invention, it is all It is to be belonged to the same or analogous design of the present invention within protection scope of the present invention.

Claims (6)

1. a kind of pressure break proppant pressure experiment machine, including crushing chamber(5), pressure equipment and located at crushing chamber(5)Piston, Pressure equipment acts on piston, it is characterised in that:Device also is put down including sample, the sample puts down device and crushing chamber(5)It is supporting, The crushing chamber(5)Top is provided with dismountable cover plate(3), the sample puts down and passes through cover plate at the top of device(3).
A kind of 2. pressure break according to claim 1 proppant pressure experiment machine, it is characterised in that:The sample puts down device Including putting down bar(6), sample cover plate(8)And rotary handle(2), it is described to put down bar(6)Through crushing chamber(5)Cover plate(3), institute State and put down bar(6)Middle part be equipped with and cover plate(3)The external screw thread of threaded connection, it is described to put down bar(6)Threaded upper ends connection Rotary handle(2), lower end connection sample cover plate(8), the sample cover plate(8)Shape size and crushing chamber inner chamber(4)Cross section It is identical;
The rotary handle(2)Lower end be fixedly connected with thickness pin(9), the thickness pin(9)Sequentially pass through and put down bar(6)And sample Product cover plate(8)Posterior end connection is horizontally disposed to put down shrouding(7), the thickness pin(9)Can be with rotary handle(2)Be rotated in Put down bar(6)Inner circumferential is moved, described to put down shrouding(7)Length be equal to crushing chamber inner chamber(4)Internal diameter.
A kind of 3. pressure break according to claim 2 proppant pressure experiment machine, it is characterised in that:The thickness pin(9) Upper end pass through rotary handle(2)Both are fixedly connected afterwards, and thickness pin(9)Upper end connect horizontally disposed rotation dial plate, The rotary indicator of the rotation dial plate(1)With thickness pin(9)Connection.
A kind of 4. pressure break according to claim 1 proppant pressure experiment machine, it is characterised in that:The piston top end face Provided with grabbing annular groove(10)With grab ring(11), it is described to grab ring(11)With piston hinge and with grabbing annular groove(10)Coordinate.
5. a kind of pressure break proppant pressure experiment method, usage right requires the pressure break proppant pressure described in any one of 1-4 Power experimental machine, it is characterised in that:The pressure break of experimental amount is placed in crushing chamber inner chamber with proppant(4)In, supported according to pressure break Agent is in crushing chamber inner chamber(4)Height, adjustment put down device lower end and crushing chamber inner chamber(4)The distance of bottom, load after mixing up and sweep Flat device is put down to pressure break with proppant, lays pressure break proppant uniform, piston is put into crushing chamber inner chamber afterwards (4), by pressing, equipment presses to piston, percentage of damage of the mini-frac with proppant at a particular pressure.
6. a kind of pressure break according to claim 5 proppant pressure experiment method, it is characterised in that specifically include following Step:
Step 1)Pressure break proppant is put into, according to the apparent density of pressure break proppant, Mass Calculation pressure break proppant volume, 100%-105% and crushing chamber inner chamber by pressure break proppant volume(4)Floor space draws pressure break proppant in crushing chamber Chamber(4)Height, according to the height adjustment put down bar(6)With cover plate(3)Screw connection point, make sample cover plate(8)It is located at Above pressure break proppant, rotary handle afterwards(2)Rotation, drive thickness pointer to be moved upwardly or downwardly, make to put down shrouding(7) Apart from crushing chamber inner chamber(4)The distance of bottom is equal to pressure break proppant in crushing chamber inner chamber(4)Height;
Step 2)Will be with cover plate(3)The device of putting down connected is put into crushing chamber inner chamber(4), rotary handle(2)According to clockwise and Counterclockwise interval is rotated a circle, and shrouding is put down in drive(7)Pressure break is repeatedly put down with proppant, lays proppant Uniformly, take out afterwards and put down device and cover plate(3);
Step 3)By piston alignment crushing chamber inner chamber(4)It is put into, by pressing, equipment presses to piston, mini-frac proppant Percentage of damage at a particular pressure.
CN201710615217.7A 2017-07-26 2017-07-26 Proppant pressure experiment machine and method for fracturing Active CN107421811B (en)

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CN201710615217.7A CN107421811B (en) 2017-07-26 2017-07-26 Proppant pressure experiment machine and method for fracturing

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CN201710615217.7A CN107421811B (en) 2017-07-26 2017-07-26 Proppant pressure experiment machine and method for fracturing

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Cited By (3)

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Publication number Priority date Publication date Assignee Title
CN110208093A (en) * 2019-06-28 2019-09-06 新密市万力实业发展有限公司 Rotary particulate samples lay device
CN110702524A (en) * 2018-07-10 2020-01-17 中国石油天然气股份有限公司 Self-supporting solid-phase breakage rate testing device and method
CN113340760A (en) * 2021-06-22 2021-09-03 中国石油天然气股份有限公司 Device for measuring proppant breaking rate

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Cited By (3)

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CN110702524A (en) * 2018-07-10 2020-01-17 中国石油天然气股份有限公司 Self-supporting solid-phase breakage rate testing device and method
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CN113340760A (en) * 2021-06-22 2021-09-03 中国石油天然气股份有限公司 Device for measuring proppant breaking rate

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